PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7881414-6 1994 In three families, both HSCR and MEN 2A were associated with a single Cys-->Arg mutation at either codon 618 or 620 of RET. Arginine 76-79 ret proto-oncogene Homo sapiens 33-39 7881414-6 1994 In three families, both HSCR and MEN 2A were associated with a single Cys-->Arg mutation at either codon 618 or 620 of RET. Arginine 76-79 ret proto-oncogene Homo sapiens 119-122